Trader Joe's iconic Everything but the Bagel Seasoning Blend uses flaky sea salt, and your local bagel shop probably does, too. To nail that same textural complexity at home, try using Maldon salt flakes, or for an added boost of flavor, Maldon also makes smoked sea salt flakes, which would work especially well for seasoning a lox bagel. For a subtler taste, you could use these French Fleur De Sel sea salt flakes from Selefina.